Dimming Structure, Its Manufacturing Method, Dimming Module and Dimming Device

Abstract

The present invention provides a dimming structure, a manufacturing method thereof, a dimming module, and a dimming device. The dimming structure includes one or two mutually stacked dimming functional layers. The dimming functional layer includes a plurality of sub-functional layers distributed in different partitions. At least one of the first substrates of the plurality of sub-functional layers and the second substrates of the plurality of sub-functional layers forms an integral planar substrate; one of the first electrodes of the plurality of sub-functional layers and the second electrodes of the plurality of sub-functional layers is arranged at intervals, and the other is arranged at intervals or forms an integral planar electrode; the dye liquid crystal layers of the plurality of sub-functional layers each include a sealant disposed around between the first alignment layer and the second alignment layer, and dye molecules and liquid crystal molecules disposed in the space surrounded by the sealant; the sealants of the plurality of sub-functional layers are arranged at intervals, and the spaces surrounded by the sealants of the plurality of sub-functional layers are isolated from each other. This solution can solve the problem of the confusion of the alignment directions of a plurality of sub-functional layers after stacking in the prior art.

Description

Technical Field

[0001] The present invention relates to the field of display technologies, and in particular, to a dimming structure, a manufacturing method thereof, a dimming module, and a dimming device. Background Art

[0002] Currently, a dye liquid crystal dimming insulating glass unit (IGU) has been widely used in fields such as architecture and transportation vehicles, and it can adjust the transmittance of visible light. In order to be applicable to different scenarios, multiple dimming functional layers (FOGs) that make up the IGU need to be spliced.

[0003] However, in the prior art, each FOG is cut into two independent sub-functional layers and then spliced. Since the appearance contours and sizes of the multiple sub-functional layers are the same, it is inevitable that the orientation directions of the multiple sub-functional layers will be confused after being stacked. If there are multiple different combinations of orientation directions in the same IGU, it will cause differences in transmittance and chromaticity when observing the IGU from a side view, resulting in poor dimming uniformity. In addition, the prior art needs to splice multiple sub-functional layers, and the number of splices is large, resulting in increased manufacturing costs and reduced production efficiency. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems existing in the prior art, and provides a dimming structure, a manufacturing method thereof, a dimming module, and a dimming device, which can solve the problem that the orientation directions of multiple sub-functional layers are confused after being stacked in the prior art, thereby improving dimming uniformity. At the same time, the number of splices of the sub-functional layers can be reduced, the manufacturing cost can be reduced, and the production efficiency can be improved.

[0005] To achieve the above object, an embodiment of the present disclosure provides a dimming structure, including one or two mutually stacked dimming functional layers. The dimming functional layer includes multiple sub-functional layers distributed in different partitions. Each sub-functional layer includes: a first substrate and a second substrate disposed opposite to each other, a first electrode and a second electrode respectively disposed on one side of the first substrate and the second substrate facing each other; a first alignment layer and a second alignment layer respectively disposed on one side of the first electrode and the second electrode facing each other; and a dye liquid crystal layer located between the first alignment layer and the second alignment layer.

[0006] At least one of the first substrates of the plurality of sub-functional layers and the second substrates of the plurality of sub-functional layers forms an integral planar substrate; one of the first electrodes of the plurality of sub-functional layers and the second electrodes of the plurality of sub-functional layers is arranged at intervals, and the other is arranged at intervals or forms an integral planar electrode; the dye liquid crystal layers of the plurality of sub-functional layers each include a sealant disposed around between the first alignment layer and the second alignment layer, and dye molecules and liquid crystal molecules disposed in the space surrounded by the sealant; the sealants of the plurality of sub-functional layers are arranged at intervals, and the spaces surrounded by the sealants of the plurality of sub-functional layers are isolated from each other.

[0007] Optionally, for two mutually stacked dimming functional layers, the alignment directions of the first alignment layer and the second alignment layer of each sub-functional layer in one dimming functional layer are respectively parallel to each other, and are a first direction and a second direction that are opposite in direction; the alignment directions of the first alignment layer and the second alignment layer of the sub-functional layer in the other dimming functional layer stacked therewith are respectively parallel to each other, and are a third direction and a fourth direction that are opposite in direction.

[0008] Optionally, the first direction and the second direction are perpendicular to the third direction and the fourth direction.

[0009] Optionally, the first alignment layers of the plurality of sub-functional layers are arranged at intervals, and the second alignment layers of the plurality of sub-functional layers are arranged at intervals.

[0010] Optionally, the interval between one of the first electrodes of the plurality of sub-functional layers and the second electrodes of the plurality of sub-functional layers is greater than or equal to 2 mm and less than or equal to 4 mm;

[0011] The interval between the sealants of the plurality of sub-functional layers is greater than or equal to 2 mm and less than or equal to 4 mm;

[0012] The interval between the first alignment layers of the plurality of sub-functional layers is greater than or equal to 2 mm and less than or equal to 4 mm; the interval between the second alignment layers of the plurality of sub-functional layers is greater than or equal to 2 mm and less than or equal to 4 mm.

[0013] Optionally, a transparent insulating colloid is provided in the interval between one of the first electrodes of the plurality of sub-functional layers and the second electrodes of the plurality of sub-functional layers, and in the interval between the sealants of the plurality of sub-functional layers.

[0014] Optionally, each of the first electrodes of the plurality of sub-functional layers and the second electrodes of the plurality of sub-functional layers is provided with at least one binding portion for binding to a flexible circuit board outside the transmittance adjustment region where it is located.

[0015] Optionally, there are three sub-functional layers, and at least one of the first electrodes of the three sub-functional layers and the second electrodes of the multiple sub-functional layers are spaced apart, and are respectively a first electrode partition, a second electrode partition, and a third electrode partition. The first electrode partition and the second electrode partition are located on the same side of the third electrode partition;

[0016] There is one binding part, and it is located on the side of the first electrode partition and the second electrode partition away from the third electrode partition;

[0017] The third electrode partition has an extension part, and one end of the extension part passes through the interval between the first electrode partition and the second electrode partition and extends to the side where the binding part is located;

[0018] The binding part includes three sub-binding parts spaced apart from each other. The first electrode partition, the second electrode partition, and the extension part are respectively bound to the flexible circuit board through the three sub-binding parts.

[0019] Optionally, there are three sub-functional layers, and at least one of the first electrodes of the three sub-functional layers and the second electrodes of the multiple sub-functional layers are spaced apart, and are respectively a first electrode partition, a second electrode partition, and a third electrode partition. The first electrode partition and the second electrode partition are located on the same side of the third electrode partition;

[0020] There is one binding part, and it is located on the side of the first electrode partition and the third electrode partition away from the first electrode partition or the second electrode partition;

[0021] The first electrode partition or the second electrode partition has an extension part, and one end of the extension part passes through the interval between the second electrode partition and the third electrode partition or the interval between the first electrode partition and the third electrode partition and extends to the side where the binding part is located;

[0022] The binding part includes three sub-binding parts spaced apart from each other. The second electrode partition and the third electrode partition and the extension part, or the first electrode partition and the third electrode partition and the extension part, are respectively bound to the flexible circuit board through the three sub-binding parts.

[0023] Optionally, there are three sub-functional layers. At least one of the first electrodes of the three sub-functional layers and the second electrodes of the multiple sub-functional layers are spaced apart, and are respectively a first electrode partition, a second electrode partition, and a third electrode partition. The first electrode partition and the second electrode partition are located on the same side of the third electrode partition;

[0024] There are two binding parts, one of the binding parts is the first binding part, which is located on the side of the first electrode partition and the second electrode partition away from the third electrode partition, and the other binding part is the second binding part, which is located on the side of the third electrode partition away from the first electrode partition or the second electrode partition;

[0025] The first binding part includes two sub-binding parts spaced apart from each other. The first electrode partition and the second electrode partition are respectively bound to a flexible circuit board through the two sub-binding parts; the third electrode partition is bound to another flexible circuit board through the second binding part.

[0026] Optionally, the binding part provided for the first electrode of the multiple sub-functional layers is the first electrode binding part; the binding part provided for the second electrode of the multiple sub-functional layers is the second electrode binding part;

[0027] The second electrode binding part is arranged opposite to the first electrode binding part. The flexible circuit board has a contact part arranged between the first electrode binding part and the second electrode binding part. The contact part includes a first contact surface and a second contact surface facing away from each other. The first contact surface faces the first electrode binding part, and the second contact surface faces the second electrode binding part;

[0028] At least one first binding terminal for electrically contacting the first electrode binding part is arranged on the first contact surface. The first electrodes of at least one sub-functional layer are respectively electrically conducted with the flexible circuit board through at least one first binding terminal; at least one second binding terminal for electrically contacting the second electrode binding part is arranged on the second contact surface. The second electrodes of at least one sub-functional layer are respectively electrically conducted with the flexible circuit board through at least one second binding terminal.

[0029] Optionally, a protective colloid is arranged at the sealing part between the contact part and the first electrode binding part and the second electrode binding part.

[0030] Optionally, the outer peripheral contour shape of the binding part is a rectangle, the length of the rectangle is greater than or equal to 30 mm and less than or equal to 60 mm; the width of the rectangle is greater than or equal to 6 mm and less than or equal to 15 mm.

[0031] Optionally, the distance between the extension part and the electrode partition it passes through is greater than or equal to 40 μm and less than or equal to 80 μm.

[0032] Optionally, the distance between each adjacent two sub-binding parts is greater than or equal to 0.1 mm and less than or equal to 1 mm.

[0033] As another technical solution, the present invention further provides a dimming structure, including one or two mutually stacked dimming functional layers. The dimming functional layer includes a plurality of sub-functional layers distributed in different partitions. Each sub-functional layer includes: a first substrate and a second substrate disposed opposite to each other, a first electrode and a second electrode respectively disposed on one side of the first substrate and the second substrate facing each other; a first alignment layer and a second alignment layer respectively disposed on one side of the first electrode and the second electrode facing each other; and a dye liquid crystal layer located between the first alignment layer and the second alignment layer.

[0034] The first substrates of the plurality of sub-functional layers constitute a whole planar substrate, and the second substrates of the plurality of sub-functional layers constitute a whole planar substrate; one of the first electrodes of the plurality of sub-functional layers and the second electrodes of the plurality of sub-functional layers are arranged at intervals, and the other is arranged at intervals or constitutes a whole planar electrode.

[0035] The interval between one of the first electrodes of the plurality of sub-functional layers and the second electrodes of the plurality of sub-functional layers is greater than or equal to 2 mm and less than or equal to 4 mm.

[0036] As another technical solution, the present invention further provides a dimming module, including any one of the above dimming structures provided by the present invention.

[0037] It further includes a first protective layer and a second protective layer disposed opposite to each other, and the dimming structure is disposed between the first protective layer and the second protective layer.

[0038] Optionally, the dimming structure is fixed to the first protective layer and the second protective layer respectively through two first transparent adhesive layers; or, the dimming structure is fixed to the first protective layer through a first transparent adhesive layer, and the dimming structure is disposed at an interval from the second protective layer.

[0039] The first transparent adhesive layer adopts a whole planar adhesive layer.

[0040] Optionally, the two dimming functional layers are fixed through a second transparent adhesive layer.

[0041] The second transparent adhesive layer all adopts a whole planar adhesive layer.

[0042] Optionally, there are a plurality of the dimming structures, and they are spliced with each other.

[0043] Optionally, the first electrodes of the plurality of sub-functional layers are arranged at intervals, and the second electrodes of the plurality of sub-functional layers are arranged at intervals; the dimming module further includes a plurality of first flexible circuit boards respectively bound to the first electrodes of the plurality of sub-functional layers, and a plurality of second flexible circuit boards respectively bound to the second electrodes of the plurality of sub-functional layers; or,

[0044] The first electrodes of the plurality of sub-functional layers are arranged at intervals, and the second electrodes of the plurality of sub-functional layers form a whole planar electrode; the dimming module further includes a plurality of first flexible circuit boards respectively and correspondingly bonded to the first electrodes of the plurality of sub-functional layers, and a second flexible circuit board bonded to the planar electrode.

[0045] Optionally, the dimming structure is fixed to the first protective layer and the second protective layer through two first transparent adhesive layers respectively;

[0046] There is one dimming functional layer;

[0047] The dimming module further includes a sealant disposed between the first protective layer and the second protective layer and surrounding the dimming structure, and a buffer tape is disposed around between the sealant and the two first transparent adhesive layers.

[0048] Optionally, the thickness of the sealant satisfies the following relational expression:

[0049] T3 = T2 + 2×T1

[0050] Wherein, T3 is the thickness of the sealant; T2 is the thickness of the dimming structure; T1 is the thickness of the buffer tape, and the thickness of the buffer tape is equal to the thickness of the first transparent adhesive layer.

[0051] Optionally, the thickness of the dimming structure is greater than or equal to 0.1 mm and less than or equal to 0.4 mm; the thickness of the buffer tape is 0.4 mm, or 0.5 mm, or 0.6 mm, or 0.8 mm, or 1.1 mm.

[0052] Optionally, the dimming module further includes a transparent display panel, the transparent display panel is disposed between the dimming structure and one of the first transparent adhesive layers and is located in a partition where one of the sub-functional layers of the dimming functional layer is located, and this first transparent adhesive layer is configured to eliminate the step difference between the transparent display panel and the dimming structure; the transparent display panel is fixed to the dimming structure through a second transparent adhesive layer.

[0053] Optionally, the sealant of the transparent display panel is made of a transparent colloid.

[0054] Optionally, the transparent display panel is a flexible transparent display panel.

[0055] As another technical solution, the present invention further provides a dimming device, and the dimming device is any one of a daylighting roof, a curtain wall, a passenger vehicle, a rail transit vehicle, an airplane, and a ship; the adjustment device includes the above dimming module provided by the present invention.

[0056] Optionally, the dimming module includes the above dimming structure provided by the present invention;

[0057] The dimming device is applied to the sunroof glass of a passenger car; the first electrode partition, the second electrode partition, and the third electrode partition respectively correspond to the driver's area, the co-driver's area, and the rear seat area of the interior space of the passenger car.

[0058] Optionally, the dimming module further includes a transparent display panel, which is disposed between the dimming structure and one of the first transparent adhesive layers, and is located in a partition where one of the sub-functional layers of the dimming functional layer is located. The first transparent adhesive layer is configured to eliminate the step difference between the transparent display panel and the dimming functional layer; the transparent display panel is fixed to the dimming structure through a second transparent adhesive layer;

[0059] The transparent display panel is located in the partition where the sub-functional layer corresponding to the rear seat area is located.

[0060] As another technical solution, the present invention also provides a manufacturing method of a dimming structure, including:

[0061] Providing a whole layer structure of one or two dimming functional layers;

[0062] Cutting the whole layer structure so that the whole layer structure has a contour with a predetermined shape;

[0063] Performing local cutting on the cut whole layer structure to obtain a plurality of sub-functional layers distributed in different partitions, wherein,

[0064] Each sub-functional layer includes: a first substrate and a second substrate disposed opposite to each other, a first electrode and a second electrode respectively disposed on one side of the first substrate and the second substrate facing each other; a first alignment layer and a second alignment layer respectively disposed on one side of the first electrode and the second electrode facing each other; and a dye liquid crystal layer located between the first alignment layer and the second alignment layer;

[0065] At least one of the first substrates of the plurality of sub-functional layers and the second substrates of the plurality of sub-functional layers constitutes a whole planar substrate; one of the first electrodes of the plurality of sub-functional layers and the second electrodes of the plurality of sub-functional layers are arranged at intervals, and the other is arranged at intervals or constitutes a whole planar electrode; the dye liquid crystal layers of the plurality of sub-functional layers each include a sealant disposed around between the first alignment layer and the second alignment layer, and dye molecules and liquid crystal molecules disposed in the space surrounded by the sealant; the sealants of the plurality of sub-functional layers are arranged at intervals, and the spaces surrounded by the sealants of the plurality of sub-functional layers are isolated from each other.

[0066] Optionally, the partial cutting of the cut whole-layer structure includes:

[0067] Using a single mechanical cutting process on the cut whole-layer structure to cut the whole layer of the first substrate of multiple sub-functional layers, the whole layer of the first electrode of multiple sub-functional layers, the whole layer of the first alignment layer of multiple sub-functional layers, and the sealant in the dye liquid crystal layer between adjacent sub-functional layers, so that the first substrates of the formed sub-functional layers are arranged at intervals, the first electrodes of multiple sub-functional layers are arranged at intervals, the first alignment layers of multiple sub-functional layers are arranged at intervals, and the sealants of multiple sub-functional layers are arranged at intervals;

[0068] The second substrates of multiple sub-functional layers form a whole planar substrate; the second electrodes of multiple sub-functional layers form a whole planar electrode; the second alignment layers of multiple sub-functional layers form a whole planar alignment layer.

[0069] Optionally, the partial cutting of the cut whole-layer structure includes:

[0070] Using a laser cutting process on the cut whole-layer structure to cut the whole layer of one of the first electrodes and the second electrodes of multiple sub-functional layers, so that one of the first electrodes and the second electrodes of the formed multiple sub-functional layers are arranged at intervals;

[0071] The first substrates of multiple sub-functional layers form a whole planar substrate, and the second substrates of multiple sub-functional layers form a whole planar substrate.

[0072] As another technical solution, the present invention also provides a manufacturing method of a dimming structure, including:

[0073] Manufacturing one or two mutually stacked dimming functional layers, the dimming functional layer includes multiple sub-functional layers distributed in different partitions, and each sub-functional layer includes: a first substrate and a second substrate arranged opposite to each other, a first electrode and a second electrode respectively arranged on the sides of the first substrate and the second substrate facing each other; a first alignment layer and a second alignment layer respectively arranged on the sides of the first electrode and the second electrode facing each other; and a dye liquid crystal layer located between the first alignment layer and the second alignment layer; wherein,

[0074] The first substrates of multiple sub-functional layers form a whole planar substrate, and the second substrates of multiple sub-functional layers form a whole planar substrate;

[0075] The patterns of the first electrodes of the multiple sub-functional layers and the patterns of the second electrodes of the multiple sub-functional layers are manufactured by using a sputtering deposition process or a laser etching process, so that one of the first electrodes of the multiple sub-functional layers and the second electrodes of the multiple sub-functional layers is arranged at intervals, and the other is arranged at intervals or forms a whole planar electrode. Description of the Drawings

[0076] Figure 1 It is a splicing schematic diagram of multiple dimming functional layers of an existing dimming structure;

[0077] Figure 2 It is a comparison diagram of the alignment directions of two dye liquid crystal master plates;

[0078] Figure 3 It is along Figure 1 The cross-sectional view of the N-N line in;

[0079] Figure 4 It is an alignment comparison diagram of multiple combinations of the alignment directions of four sub-functional layers;

[0080] Figure 5 It is a splicing schematic diagram of multiple dimming structures of the dimming module provided by the embodiment of the present invention;

[0081] Figure 6 It is along Figure 5 The cross-sectional view of the M-M line in;

[0082] Figure 7 It is a plan view of a dimming functional layer adopted by the embodiment of the present invention;

[0083] Figure 8 It is along Figure 7 The cross-sectional view of the M’-M’ line in;

[0084] Figure 9 It is a comparison diagram of the alignment directions of two dye liquid crystal master plates adopted by the embodiment of the present invention;

[0085] Figure 10 It is another cross-sectional view of the dimming functional layer adopted by the embodiment of the present invention;

[0086] Figure 11 It is another plan view of the dimming functional layer adopted by the embodiment of the present invention;

[0087] Figure 12 It is along Figure 11 The cross-sectional view of the M”-M” line in;

[0088] Figure 13 It is another comparison diagram of the alignment directions of two dye liquid crystal master plates adopted by the embodiment of the present invention;

[0089] Figure 14 Plan view of the first electrode and the second electrode adopted in the embodiment of the present invention;

[0090] Figure 15 Plan view of a kind of three-zone electrodes and the binding part adopted in the embodiment of the present invention;

[0091] Figure 16 Another plan view of the three-zone electrodes and the binding part adopted in the embodiment of the present invention;

[0092] Figure 17 Another plan view of the three-zone electrodes and the binding part adopted in the embodiment of the present invention;

[0093] Figure 18 Plan view of a kind of integral planar electrode layer and the binding part adopted in the embodiment of the present invention;

[0094] Figure 19 Another plan view of the integral planar electrode layer and the binding part adopted in the embodiment of the present invention;

[0095] Figure 20 Another plan view of the integral planar electrode layer and the binding part adopted in the embodiment of the present invention;

[0096] Figure 21 Binding schematic diagram of the contact part of the flexible circuit board and the binding parts of two electrodes adopted in the embodiment of the present invention;

[0097] Figure 22 Plan view of the first contact surface and the second contact surface of the contact part adopted in the embodiment of the present invention;

[0098] Figure 23 Cross-sectional view of a dimming module with one dimming function layer adopted in the embodiment of the present invention;

[0099] Figure 24 Cross-sectional view of a dimming module integrated with a transparent display panel adopted in the embodiment of the present invention. Detailed implementation manners

[0100] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only partial embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0101] The shapes and sizes of the components in the drawings do not reflect the actual proportions, and the purpose is only to facilitate the understanding of the content of the embodiments of the present invention.

[0102] Unless otherwise defined, technical terms or scientific terms used in this disclosure shall have the ordinary meanings as understood by those of ordinary skill in the art to which this disclosure pertains. The terms "first", "second" and similar terms used in this disclosure do not denote any order, quantity or importance, but are merely used to distinguish different components. Similarly, terms such as "a", "an" or "the" do not denote a limitation of quantity, but rather denote the presence of at least one. Terms such as "comprising" or "including" mean that the elements or items appearing before this term cover the elements or items listed after this term and their equivalents, without excluding other elements or items. Terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Terms such as "upper", "lower", "left" and "right" are only used to indicate relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0103] Embodiments of the present disclosure are not limited to the embodiments shown in the drawings, but include modifications to the configurations formed based on the manufacturing process. Therefore, the regions illustrated in the drawings have schematic properties, and the shapes of the regions shown in the figures illustrate the specific shapes of the regions of the components, but are not intended to be restrictive.

[0104] In the related art, as Figure 1 shown, taking the example that the IGU is composed of four FOGs spliced together, the four FOGs are respectively distributed in four different partitions (A - D), where the sizes of the two FOG1s distributed in partitions A and B are the same; the sizes of the two FOG2s distributed in partitions C and D are the same, and the sizes of the two FOG1s distributed in partitions A and B are different from the sizes of the two FOG2s distributed in partitions C and D.

[0105] The inventors have found through research that, taking the two FOG1s distributed in partitions A and B as an example, as Figure 2 shown, the two FOG1s are made by cutting two dye - liquid crystal master plates (E1, E2), that is, the entire layer structures of the two FOG1s. One dye - liquid crystal master plate E1 can be cut into two sub - functional layers FOG1 - 1 and FOG1 - 2, and the other dye - liquid crystal master plate E2 can be cut into two sub - functional layers FOG1 - 3 and FOG1 - 4. As Figure 3 shown, the two sub - functional layers FOG1 - 3 and FOG1 - 4 are respectively stacked with the two sub - functional layers FOG1 - 1 and FOG1 - 2, and the orientation directions of the two alignment layers in each sub - functional layer are parallel to each other and in opposite directions. For the two mutually stacked sub - functional layers, taking the two sub - functional layers FOG1 - 1 and FOG1 - 3 as an example, the sub - functional layer FOG1 - 3 includes along Figure 3The first alignment layer 01 and the second alignment layer 02 which are oppositely arranged in the vertical direction on both sides of the dye liquid crystal layer 03; the sub-functional layer FOG1-1 includes along Figure 3 The first alignment layer 04 and the second alignment layer 05 which are oppositely arranged in the vertical direction on both sides of the dye liquid crystal layer 06. Among them, the alignment direction of the first alignment layer 01 is parallel to that of the second alignment layer 02 and has opposite directions; the alignment direction of the first alignment layer 04 is parallel to that of the second alignment layer 05 and has opposite directions; the first alignment layer 01 and the first alignment layer 04 are both located on the same side of their respective corresponding dye liquid crystal layers (that is, Figure 3 The upper side of the dye liquid crystal layer shown), the second alignment layer 02 and the second alignment layer 05 are both located on the same side of their respective corresponding dye liquid crystal layers (that is, Figure 3 The lower side of the dye liquid crystal layer shown), and the alignment directions of the first alignment layer 01 and the second alignment layer 02 are perpendicular to the alignment directions of the first alignment layer 04 and the second alignment layer 05. In this way, the darkest effect of the IGU product can be achieved in the dark state. Specifically, before cutting, the alignment directions of the above-mentioned first alignment layer 01, second alignment layer 02, first alignment layer 04 and second alignment layer 05 in the two dye liquid crystal master plates (E1, E2) are as Figure 2 Shown. After cutting, by splicing the four sub-functional layers, the alignment directions of the above four alignment layers can be obtained.

[0106] However, in the related art, the problem that different alignment directions of the above four alignment layers will cause chromaticity differences has not been noticed, and since the appearance contours and sizes of the four sub-functional layers FOG1-1, FOG1-2, FOG1-3 and FOG1-4 are the same, it is inevitable that after the four sub-functional layers are stacked, the alignment directions of the above four alignment layers will be confused. For example, as Figure 4 Shown in Figures (1) to (4) of, there are various combination situations for the alignment directions of the four sub-functional layers FOG1-1, FOG1-2, FOG1-3 and FOG1-4. If the same IGU has multiple different alignment direction combinations, it will cause differences in transmittance and chromaticity when observing the IGU from the side view, resulting in poor dimming uniformity. In addition, the prior art needs to splice the above four sub-functional layers, and the number of splices is large, resulting in an increase in manufacturing cost and a decrease in production efficiency.

[0107] An embodiment of the present invention provides a dimming module, which may include a plurality of dimming structures and are spliced with each other. For example, as Figure 5As shown, there are two dimming structures, namely the first dimming structure 1a and the second dimming structure 1b. The outer peripheral contour shape after splicing the two can be any shape such as an isosceles trapezoid, a square, a rectangle, etc. The functional layers included in the first dimming structure 1a and the second dimming structure 1b are the same, only the sizes are different. Taking the first dimming structure 1a as an example, as Figure 6 shown, the first dimming structure 1a includes two mutually stacked dimming functional layers (1a1, 1a2). Of course, the embodiments of the present invention are not limited thereto. In actual applications, according to different application scenarios, the number and outer peripheral contour shape of the dimming structure can be freely set. Or, the dimming structure can also be one. In addition, the dimming structure is not limited to using two dimming functional layers (1a1, 1a2), and can also use one dimming functional layer.

[0108] The embodiments of the present invention also provide a dimming structure, and the above dimming module provided by the embodiments of the present invention can adopt this dimming structure. Specifically, the dimming functional layer in this dimming structure includes a plurality of sub-functional layers distributed in different partitions. Here, the partition refers to a plurality of different regions divided by the transmittance adjustment region of the dimming functional layer. By independently controlling the sub-functional layers in different partitions, zonal dimming can be achieved. For example, a certain partition can be selectively lit for local area dimming, while other partitions remain transparent or dark. Specifically, independent control can be achieved by separately applying different voltages to the electrodes in the sub-functional layers in different partitions.

[0109] Taking Figure 6 the two mutually stacked dimming functional layers (1a1, 1a2) shown as an example, in combination with Figure 7 shown, each dimming functional layer includes two sub-functional layers (11a, 11b). Among them, the sub-functional layer 11a in the dimming functional layer 1a1 is stacked with the sub-functional layer 11a in the dimming functional layer 1a2, and the sub-functional layer 11b in the dimming functional layer 1a1 is stacked with the sub-functional layer 11b in the dimming functional layer 1a2. Optionally, the outer peripheral contour shape of each dimming functional layer is an isosceles trapezoid. Of course, in actual applications, other arbitrary shapes such as a square, a rectangle, etc. can also be used. Taking the outer peripheral contour shape of each dimming functional layer as an isosceles trapezoid as an example, the two sub-functional layers (11a, 11b) are symmetrically distributed with respect to the midline of the isosceles trapezoid. In this way, the boundary between the two sub-functional layers (11a, 11b) is the midline of the isosceles trapezoid, which is different from the cutting line between the two sub-functional layers FOG1-1 and FOG1-2 in the prior art (as Figure 2 shown, this cutting line is not the midline of the isosceles trapezoid). The reason for the difference is that the two sub-functional layers (11a, 11b) adopted in the embodiments of the present invention are not independent of each other, and the specific structure will be described in detail below.

[0110] Please refer toFigure 8 , taking the example that the dimming functional layer includes two sub-functional layers (11a, 11b), each sub-functional layer includes: a first substrate 111 and a second substrate 112 which are oppositely arranged, a first electrode 113 and a second electrode 114 which are respectively arranged on one side of the first substrate 111 and the second substrate 112 facing each other; a first alignment layer 115 and a second alignment layer 116 which are respectively arranged on one side of the first electrode 113 and the second electrode 114 facing each other; and a dye liquid crystal layer 117 located between the first alignment layer 115 and the second alignment layer 116; at least one of the first substrates 111 of the two sub-functional layers (11a, 11b) and the second substrates 112 of the two sub-functional layers (11a, 11b) constitutes an integral planar substrate, and the dye liquid crystal layers 117 of the two sub-functional layers (11a, 11b) both include a sealant 117a arranged around between the first alignment layer 115 and the second alignment layer 116, and liquid crystal molecules 117b and dye molecules 117c arranged in the space surrounded by the sealant 117a; the sealants 117a of the two sub-functional layers (11a, 11b) are arranged at intervals, and the spaces surrounded by the sealants 117a of the two sub-functional layers (11a, 11b) are isolated from each other.

[0111] For example, Figure 8 the second substrate 112 in... is an integral planar substrate; one of the first electrodes 113 of the two sub-functional layers (11a, 11b) and the second electrodes 114 of the two sub-functional layers (11a, 11b) is arranged at intervals, and the other is arranged at intervals or constitutes an integral planar electrode. For example, Figure 8 in... the first electrodes 113 of the two sub-functional layers (11a, 11b) are arranged at intervals, and the second electrode 114 is an integral planar electrode. It should be noted that the respective film layers of the two sub-functional layers (11a, 11b) are arranged in the same layer in a one-to-one correspondence.

[0112] In the related art, within a single sub-function layer, multiple strip electrodes arranged at intervals can be formed by sputtering. The interval between adjacent strip electrodes is relatively small, generally in the range of 1 micrometer to 10 micrometers, in order to weaken the problem of light leakage between the electrodes. In contrast, in the dimming structure provided by the embodiments of the present invention, on the basis that at least one of the first substrate 111 of the two sub-function layers (11a, 11b) and the second substrate 112 of the two sub-function layers (11a, 11b) forms an integral planar substrate, one of the first electrodes 113 of the two sub-function layers (11a, 11b) and the second electrodes 114 of the two sub-function layers (11a, 11b) are arranged at intervals, and the sealants 117a of the two sub-function layers (11a, 11b) are arranged at intervals. By arranging the sealants 117a of the two sub-function layers (11a, 11b) at intervals, an electrode interval and a sealant interval larger than those in the related art can be designed, and there is no light leakage problem. In other words, the "interval" adopted in the embodiments of the present invention still corresponds to the interval at the splicing position of two independent sub-function layers in the related art, but this interval is smaller than the interval between two mutually independent and adjacent sub-function layers in the related art, for example, smaller than Figure 3 the interval between the sub-function layer FOG1-1 and the sub-function layer FOG1-4. Optionally, this interval is, for example, in the range of greater than or equal to 2 mm and less than or equal to 4 mm, which is much larger than the interval (1 micrometer to 10 micrometers) between adjacent strip electrodes within a single sub-function layer in the related art.

[0113] Here, at least one of the first substrate of multiple sub-function layers and the second substrate of multiple sub-function layers forms an integral planar substrate, which means that multiple sub-function layers share an integral planar substrate as the first substrate and / or share another integral planar substrate as the second substrate. By using the integral planar substrate as the shared substrate of multiple sub-function layers, the dimming function layer composed of multiple sub-function layers can be an integrated structure, that is, the sub-function layers are not independent of each other. Compared with the splicing structure of four mutually independent sub-function layers in the prior art, when manufacturing a dimming module, as Figure 6 shown, the dimming function layer only needs to be fixed on the protective layer (such as tempered glass) 14 through the integral planar adhesive layer 15. And for the case of two dimming function layers, only the two dimming function layers (1a1, 1a2) need to be stacked and fixed together through the integral planar adhesive layer 16, without the need to splice multiple sub-function layers in the same dimming function layer. Combining Figure 9As shown, the entire layer structures (F1, F2) of the two dimming functional layers (1a1, 1a2) can be referred to as a dye liquid crystal mother board. The two entire layer structures (F1, F2) are respectively cut so that the two entire layer structures (F1, F2) have a contour with a predetermined shape, such as an isosceles trapezoid. When cutting, the two entire layer structures (F1, F2) can be cut along the contour of the predetermined shape. For example, mechanical cutting can be used. After cutting, the dimming functional layer shown in Figure 7 can be obtained. The outer peripheral contour of the dimming functional layer is provided with a sealing adhesive 12 around it. Then, only by fixing the two dimming functional layers (1a1, 1a2) on the protective layer 14 through a whole-layer planar transparent adhesive layer 15 and stacking and fixing the two dimming functional layers (1a1, 1a2) together through a whole-layer planar transparent adhesive layer 16, there is no need to splice the two sub-functional layers (11a, 11b) in the same dimming functional layer anymore. Therefore, there is no situation where the orientation directions of the four sub-functional layers are confused after stacking in the related art, ensuring that the orientation directions of different partitions are consistent. Thus, there are no transmittance and chromaticity differences when observed from any perspective, and further, the dimming uniformity can be improved. At the same time, since there is no need to splice multiple sub-functional layers anymore, the splicing quantity of the sub-functional layers can be reduced, thereby reducing the manufacturing cost and improving the production efficiency.

[0114] On the basis of achieving the above technical effects, in order to achieve zoned dimming, one of the first electrodes of the multiple sub-functional layers and the second electrodes of the multiple sub-functional layers are arranged at intervals, and the other is arranged at intervals or forms a whole-layer planar electrode, so as to be able to separately apply different voltages to the electrodes in different partitions to achieve zoned dimming. On this basis, the other electrodes of the multiple sub-functional layers can be independent of each other or share a whole-layer planar electrode, that is, used as a common electrode.

[0115] In some alternative embodiments, taking Figure 6 the two mutually stacked dimming functional layers (1a1, 1a2) shown as an example, in combination with Figure 8As shown, the alignment directions of the first alignment layer 115 and the second alignment layer 116 of the two sub-functional layers (11a, 11b) in one of the dimming functional layers 1a1 are the first direction and the second direction that are parallel to each other, respectively. It should be noted that for the same dimming functional layer, taking the dimming functional layer 1a1 as an example, the alignment directions of the first alignment layer 115 of the two sub-functional layers (11a, 11b) are the same, that is, the first direction; the alignment directions of the second alignment layer 116 of the two sub-functional layers (11a, 11b) are the same, that is, the second direction. The alignment directions of the first alignment layer 115 and the second alignment layer 116 of the two sub-functional layers (11a, 11b) in another dimming functional layer 1a2 stacked thereon are the third direction and the fourth direction that are parallel to each other, respectively. Further optionally, the first direction and the second direction are perpendicular to the third direction and the fourth direction. This can achieve the darkest effect of the IGU product in the dark state. Specifically, before splicing, the alignment directions of the first alignment layer 115 and the second alignment layer 116 in the two sub-functional layers (11a, 11b) of the two dimming functional layers (1a1, 1a2) in the two dye liquid crystal master plates, that is, the two integral layer structures (F1, F2), are as Figure 9 shown. After stacking the two dimming functional layers (1a1, 1a2), the above alignment directions of each alignment layer can be obtained.

[0116] In some alternative embodiments, taking the dimming functional layer including two sub-functional layers (11a, 11b) as an example, Figure 8 the first alignment layers of the two sub-functional layers (11a, 11b) in Figure 8 are arranged at intervals, and the second alignment layers of the two sub-functional layers (11a, 11b) are arranged at intervals. In practical applications, according to specific needs, the first alignment layers of multiple sub-functional layers can be independent of each other or share an integral planar alignment layer; the second alignment layers of multiple sub-functional layers can be independent of each other or share another integral planar alignment layer.

[0117] In some alternative embodiments, the spacing between one of the first electrodes 113 of the two sub-functional layers (11a, 11b) and one of the second electrodes 114 of the two sub-functional layers (11a, 11b) is greater than or equal to 2 mm and less than or equal to 4 mm, preferably greater than or equal to 1 mm and less than or equal to 2 mm; the spacing between the sealants 117a of the two sub-functional layers (11a, 11b) is greater than or equal to 2 mm and less than or equal to 4 mm, preferably greater than or equal to 1 mm and less than or equal to 2 mm. The spacing between the first alignment layers 115 of the two sub-functional layers (11a, 11b) is greater than or equal to 2 mm and less than or equal to 4 mm, preferably greater than or equal to 1 mm and less than or equal to 2 mm; the spacing between the second alignment layers 116 of the two sub-functional layers (11a, 11b) is greater than or equal to 2 mm and less than or equal to 4 mm, preferably greater than or equal to 1 mm and less than or equal to 2 mm. By setting the above spacing within this numerical range, not only can the electrodes, alignment layers, and dye liquid crystal layers between different sub-functional layers be isolated from each other, but this numerical range is smaller than the spacing between two adjacent and independent sub-functional layers in the related art. For example, it is smaller than Figure 3 the spacing between the sub-functional layer FOG1-1 and the sub-functional layer FOG1-4 in the neutron.

[0118] The dimming structure provided by the embodiments of the present invention can adopt different structures according to different manufacturing methods. For example, as Figure 8 shown, the first substrates 111 of the two sub-functional layers (11a, 11b) are arranged at intervals, and the second substrates 112 of the two sub-functional layers (11a, 11b) form an integral planar substrate. It should be noted that Figure 8 the first substrate 111 in

[0119] Optionally, the first substrate 111 of the two sub-functional layers (11a, 11b) and the first electrode 113 of the two sub-functional layers (11a, 11b) are made by a single mechanical cutting process. That is, the single mechanical cutting process simultaneously completes the cutting of multiple film layers. This cutting method is relatively simple and has a low processing cost. Combining Figure 6 and Figure 7 As shown, after a single cutting process is performed on the entire layer of the first substrate 111 and the entire layer of the first electrode 113, a gap 13 can be formed at the cutting position. The position where the gap 13 is located is a dye-free liquid crystal region. Optionally, the gap 13 is greater than or equal to 2 mm and less than or equal to 4 mm, preferably greater than or equal to 1 mm and less than or equal to 2 mm, so as to isolate the electrodes between different sub-functional layers and the dye liquid crystal layer from each other.

[0120] In some optional embodiments, taking the dimming functional layer including two sub-functional layers (11a, 11b) as an example, the first alignment layers 115 of the two sub-functional layers (11a, 11b) are arranged at intervals or form a single planar alignment layer, Figure 8 the two first alignment layers 115 in Figure 8 are arranged at intervals, the second alignment layers 116 of the two sub-functional layers (11a, 11b) are arranged at intervals or form a single planar alignment layer, Figure 8 and the two second alignment layers 116 in form a single planar alignment layer. In practical applications, according to specific needs, the first alignment layers of multiple sub-functional layers can be independent of each other or share a single planar alignment layer; the second alignment layers of multiple sub-functional layers can be independent of each other or share another single planar alignment layer. Optionally, when performing the single mechanical cutting process, the entire layer of the first alignment layer and / or the entire layer of the second alignment layer can be cut.

[0121] Taking the dimming functional layer including two sub-functional layers (11a, 11b) as an example, the dye liquid crystal layers 117 of the two sub-functional layers (11a, 11b) are arranged at intervals. Optionally, when performing the single mechanical cutting process, the dye liquid crystal layer 117 can be cut. In this case, the position where the dye liquid crystal layer 117 is cut is the position where the sealant 117a between the two sub-functional layers (11a, 11b) is located, so as to ensure the sealing of the space surrounded by the sealant 117a and prevent the dye molecules 117c and liquid crystal molecules 117b in the space surrounded by the sealant 117a from leaking out.

[0122] In some optional embodiments, a transparent insulating colloid (not shown in the figure) is provided in the gap (i.e., Figure 8 the gap 13 shown) between one of the first electrodes and the second electrodes of multiple sub-functional layers, so as to block the entry of external water vapor or dust particles into the gap, thereby avoiding short-circuiting of the electrodes.

[0123] In some other alternative embodiments, a laser cutting process can also be used to achieve local cutting. For this process, since it can ablate and vaporize the inner film layer through the glass substrate, therefore, as Figure 10 shown, taking the dimming functional layer including two sub-functional layers (11a, 11b) as an example, the first substrates 111 of the two sub-functional layers (11a, 11b) can form a whole planar substrate, and the second substrates 112 of the two sub-functional layers (11a, 11b) can form a whole planar substrate, that is, the two sub-functional layers (11a, 11b) share a whole planar substrate as the first substrate and share another whole planar substrate as the second substrate. On this basis, the laser cutting process is used to cut one of the first electrodes 113 of the two sub-functional layers (11a, 11b) and the second electrodes 114 of the two sub-functional layers (11a, 11b) to obtain independent electrodes and achieve zoned dimming. The laser cutting process can make the first substrates and the second substrates of multiple sub-functional layers both be whole planar substrates, and can selectively cut the corresponding film layers between the two whole planar substrates. The structures of these film layers after cutting can adopt the same structures as the aforementioned mechanical cutting process, which have been described in detail above and will not be elaborated here.

[0124] Alternatively, in some other alternative embodiments, a sputtering deposition process or a laser etching process can also be directly used to fabricate the patterns of the first electrodes of multiple sub-functional layers and the patterns of the second electrodes of multiple sub-functional layers to achieve zoned dimming. Specifically, as Figure 11 and Figure 12 shown, taking the dimming functional layer 1a1 including two sub-functional layers (11a, 11b) as an example, the first substrates 111 of the two sub-functional layers (11a, 11b) can form a whole planar substrate, and the second substrates 112 of the two sub-functional layers (11a, 11b) can form a whole planar substrate, that is, the two sub-functional layers (11a, 11b) share a whole planar substrate as the first substrate and share another whole planar substrate as the second substrate. On this basis, the patterns of the first electrodes 113 of the two sub-functional layers (11a, 11b) and the patterns of the second electrodes 114 of the two sub-functional layers (11a, 11b) are both fabricated by a sputtering deposition process or a laser etching process. For example, as Figure 13As shown, when fabricating the entire layer structures (F1, F2) of two dimming functional layers (1a1, 1a2), which can be referred to as a dye liquid crystal master substrate, a partition sputtering deposition process can be performed on the entire layer of the substrate to directly deposit and form patterned electrodes (the first electrode and / or the second electrode) on the entire layer of the substrate (the first substrate and / or the second substrate), so that there is no need to cut the entire layer of the electrodes subsequently. Alternatively, the entire layer of the electrodes can also be deposited on the entire layer of the substrate, and then a laser etching process is performed on the entire layer of the electrodes, which can also form patterned electrodes. For example, after patterning the first electrode 113 and the second electrode 114 by using the sputtering deposition process or the laser etching process respectively, as Figure 14 shown in Figure (1) of Figure 14 , the pattern of the first electrode 113 of the two sub-functional layers (11a, 11b) is an entire layer planar electrode layer; as shown in Figure (2) of

[0125] , the pattern of the second electrode 114 of the two sub-functional layers (11a, 11b) is two partition electrodes arranged at intervals. Optionally, the interval between the two partition electrodes is greater than or equal to 2 mm and less than or equal to 4 mm, preferably greater than or equal to 1 mm and less than or equal to 2 mm, so as to achieve mutual isolation between different partition electrodes. Figure 11 That is to say, when fabricating the entire layer structure of the dimming functional layer, electrode patterning is directly performed to achieve partition dimming. Then, the two entire layer structures (FI, F2) are respectively cut so that the two entire layer structures (FI, F2) have a contour with a predetermined shape; for example, an isosceles trapezoid as

[0126] shown. Then, only the two dimming functional layers (1a1, 1a2) need to be fixed on the protective layer (such as tempered glass) through an entire layer planar transparent adhesive layer, and the two dimming functional layers (1a1, 1a2) are stacked and fixed together through the entire layer planar transparent adhesive layer. Compared with the above two manufacturing methods of mechanical cutting and laser cutting, the subsequent local cutting steps can be omitted, so that on the basis of achieving partition dimming, the processing steps can be further simplified and the production efficiency can be improved. At the same time, there is also no situation where the orientation directions of the four sub-functional layers are confused after being stacked in the prior art, ensuring that the orientation directions of different partitions are consistent, so that there is no transmittance and chromaticity difference when observed from any perspective, and thus the dimming uniformity can be improved. At the same time, since there is no need to splice multiple sub-functional layers anymore, the splicing quantity of the sub-functional layers can be reduced, thereby reducing the manufacturing cost and improving the production efficiency. Figure 12As shown, the first substrate 111 of the two sub-functional layers (11a, 11b) can form a whole planar substrate, and the second substrate 112 of the two sub-functional layers (11a, 11b) can form a whole planar substrate. That is, the two sub-functional layers (11a, 11b) share a whole planar substrate as the first substrate and share another whole planar substrate as the second substrate. On this basis, one of the first electrodes 113 of the two sub-functional layers (11a, 11b) and the second electrodes 114 of the two sub-functional layers (11a, 11b) are arranged at intervals, and the other is arranged at intervals or forms a whole planar electrode. For example, Figure 12 In Figure 12 , the first electrode 113 of the two sub-functional layers (11a, 11b) is a whole planar electrode, and the second electrode 114 is arranged at intervals. Moreover, the interval (i.e., interval 13) between one of the first electrodes 113 of the two sub-functional layers (11a, 11b) and the second electrodes 114 of the two sub-functional layers (11a, 11b) is greater than or equal to 2 mm and less than or equal to 4 mm, preferably greater than or equal to 1 mm and less than or equal to 2 mm, so as to achieve mutual isolation between different electrodes.

[0127] In the related art, within a single sub-functional layer, multiple strip-shaped electrodes arranged at intervals can be formed by sputtering. The interval between adjacent electrodes is relatively small, generally in the range of 1 micron to 10 microns, in order to weaken the problem of light leakage between the electrodes. In contrast, in the dimming structure provided by the embodiments of the present invention, on the basis that at least one of the first substrate 111 of the two sub-functional layers (11a, 11b) and the second substrate 112 of the two sub-functional layers (11a, 11b) forms a whole planar substrate, one of the first electrodes 113 of the two sub-functional layers (11a, 11b) and the second electrodes 114 of the two sub-functional layers (11a, 11b) are arranged at intervals, and the sealing adhesives 117a of the two sub-functional layers (11a, 11b) are arranged at intervals. By arranging the sealing adhesives 117a of the two sub-functional layers (11a, 11b) at intervals, an electrode interval and a sealing adhesive interval larger than those in the related art can be designed, and there is no light leakage problem. That is, this interval is in the range of greater than or equal to 2 mm and less than or equal to 4 mm, which is much larger than the interval (1 micron to 10 microns) between adjacent electrodes in the related art. In other words, the "interval" adopted in the embodiments of the present invention still corresponds to the interval at the splicing position of two independent sub-functional layers in the related art, but this interval is smaller than the interval between two mutually independent and adjacent sub-functional layers in the related art.

[0128] Optionally, the first alignment layer 115 of the two sub-functional layers (11a, 11b) forms an integral planar alignment layer, and the second alignment layer 116 of the two sub-functional layers (11a, 11b) forms an integral planar alignment layer; the dye liquid crystal layers 117 of the two sub-functional layers (11a, 11b) form an integral dye liquid crystal layer. That is, there is no need to cut the first alignment layer 115, the second alignment layer 116, and the dye liquid crystal layer 117 of the multiple sub-functional layers. In this way, on the premise of realizing zoned dimming, the processing steps can be further simplified and the process efficiency can be improved.

[0129] Based on the above-mentioned various different dimming structures provided in the embodiments of the present invention, in some optional embodiments, each of the first electrodes of the multiple sub-functional layers and the second electrodes of the multiple sub-functional layers is provided with at least one binding portion for binding to a flexible circuit board outside the transmittance adjustment region where it is located. With the binding portion, it is more convenient to electrically connect the flexible circuit board to each electrode. The embodiments of the present invention do not have any special restrictions on the number and position of the binding portions, as long as the flexible circuit board can be electrically connected to each electrode and zoned dimming can be realized at the same time.

[0130] Optionally, the number of sub-functional layers is three, and at least one of the first electrodes of the multiple sub-functional layers and the second electrodes of the multiple sub-functional layers are arranged at intervals, such as Figure 15 shown. Taking the first electrodes 113 of the three sub-functional layers arranged at intervals as an example, they are respectively the first electrode partition 113a, the second electrode partition 113b, and the third electrode partition 113c. This division method can be applied to, for example, the skylight glass of a passenger car; the first electrode partition 113a, the second electrode partition 113b, and the third electrode partition 113c respectively correspond to the driver's area, the passenger's area, and the rear seat area of the interior space of the passenger car.

[0131] The first electrode partition 113a and the second electrode partition 113b are located on the same side of the third electrode partition 113c; there is one bonding part 21, and it is located on the side of the first electrode partition 113a and the second electrode partition 113b away from the third electrode partition 113c; the third electrode partition 113c has an extension part 113c1, and one end of this extension part 113c1 passes through the gap between the first electrode partition 113a and the second electrode partition 113b and extends to the side where the bonding part 21 is located; the bonding part 21 includes three sub-bonding parts 21a spaced from each other, and the first electrode partition 113a, the second electrode partition 113b, and the extension part 113c1 are respectively bonded to a flexible circuit board (not shown in the figure) through the three sub-bonding parts 21a. Taking the application to the skylight glass of a passenger car as an example, the first electrode partition 113a and the second electrode partition 113b are located in the area on the side of the passenger car skylight close to the driver's area, while the third electrode partition 113c is located in the area on the side of the passenger car skylight away from the driver's area, the bonding part 21 is located on the side of the first electrode partition 113a and the second electrode partition 113b close to the driver's area, and the extension part 113c1 of the third electrode partition 113c extends to the position where the bonding part 21 is located from the side away from the driver's area to the side close to the driver's area via the gap between the first electrode partition 113a and the second electrode partition 113b. In this way, the first electrode partition 113a, the second electrode partition 113b, and the third electrode partition 113c can be independently controlled respectively, so that zoned dimming can be achieved. At the same time, by making one end of the extension part 113c1 pass through the gap between the first electrode partition 113a and the second electrode partition 113b and extend to the side where the bonding part 21 is located, it is possible to use one bonding part 21 to bond the three electrode partitions at the same position, thereby simplifying the bonding structure and the bonding process, and further reducing the cost. It should be noted that there are two gaps (113a1, 113b1) between the extension part 113c1 and the first electrode partition 113a and the second electrode partition 113b on both sides to avoid electrical conduction between the electrode partitions.

[0132] In some other alternative embodiments, the above-mentioned bonding part 21 can also be located on the side of the first electrode partition 113a and the third electrode partition 113c away from the first electrode partition 113a or the second electrode partition 113b. Taking the application to the skylight glass of a passenger car as an example, the bonding part 21 is located in the area on the side where the driver's area of the passenger car skylight glass is located (such as Figure 16The area on the side where the driver's seat is located or the area on the side where the passenger seat is located. In this case, the first electrode partition 113a or the second electrode partition 113b has an extension 113b2, and one end of the extension 113b2 passes through the gap between the second electrode partition 113b and the third electrode partition 113c or the gap between the first electrode partition 113a and the third electrode partition 113c and extends to the side where the bonding portion 21 is located. In this way, the first electrode partition 113a, the second electrode partition 113b, and the third electrode partition 113c can also be independently controlled respectively.

[0133] The above-mentioned bonding portion 21 is one and is used to bond the three electrode partitions to the flexible circuit board. However, the embodiments of the present invention are not limited thereto. In practical applications, the above-mentioned bonding portion may also be multiple. Taking the above-mentioned first electrode partition 113a, second electrode partition 113b, and third electrode partition 113c as examples, as Figure 17 shown, the bonding portion may be two. One bonding portion is the first bonding portion 21', which is located on the side of the first electrode partition 113a and the second electrode partition 113b away from the third electrode partition 113c, and the other bonding portion is the second bonding portion 21", which is located on the side of the third electrode partition 113c away from the first electrode partition 113a or the second electrode partition 113b. Taking the application to the skylight glass of a passenger car as an example, the first bonding portion 21' is located on the side of the first electrode partition 113a and the second electrode partition 113b close to the driver's seat area; the second bonding portion 21" is located in the area on the side where the driver's seat of the passenger car skylight glass is located or the area on the side where the passenger seat is located. The first bonding portion 21' includes two sub-bonding portions 21a' spaced apart from each other, and the first electrode partition 113a and the second electrode partition 113b are respectively bonded to a flexible circuit board through the two sub-bonding portions 21a'; the third electrode partition 113c is bonded to another flexible circuit board through the second bonding portion 21". In this way, the first electrode partition 113a, the second electrode partition 113b, and the third electrode partition 113c can also be independently controlled respectively.

[0134] In some alternative embodiments, taking the first electrodes of the three sub-functional layers as the first electrode partition 113a, the second electrode partition 113b, and the third electrode partition 113c respectively, the patterns of the first electrode partition 113a, the second electrode partition 113b, and the third electrode partition 113c can be made by using a laser etching process on the entire layer of the electrode, and the gap between different electrode partitions is the etching line formed by laser etching on the entire layer of the electrode. Of course, the embodiments of the present invention do not have special limitations on the manufacturing method of the electrode partitions. For example, the partition sputtering method can also be used to deposit each electrode partition.

[0135] In some alternative embodiments, taking Figure 15Taking the binding part 21 shown as an example, the outer peripheral contour shape of the binding part 21 is rectangular, the length of the rectangle is greater than or equal to 30 mm and less than or equal to 60 mm; the width of the rectangle is greater than or equal to 6 mm and less than or equal to 15 mm.

[0136] In some alternative embodiments, taking Figure 15 the binding part 21 shown as an example, the distance between the extension part and the electrode partition through which 113c1 passes, that is, there are two intervals (113a1, 113b1) between the extension part 113c1 and the first electrode partition 113a and the second electrode partition 113b on both sides, which are greater than or equal to 40 μm and less than or equal to 80 μm. This numerical range is set based on the minimum line width recognizable by the human eye, that is, the interval can be made invisible to the human eye, so as to achieve the effect of hiding the interval.

[0137] In some alternative embodiments, taking Figure 15 the binding part 21 shown as an example, the distance between each adjacent two sub-binding parts 21a is greater than or equal to 0.1 mm and less than or equal to 1 mm. Optionally, multiple sub-binding parts 21a can be fabricated by adopting a laser etching process for the entire layer of the binding part 21. In this case, the distance between each adjacent two sub-binding parts 21a is the etching line formed by laser etching on the entire layer of the binding part 21.

[0138] Optionally, the dimming structure provided by the embodiments of the present invention can be applied to the skylight glass of a passenger car; the first electrode partition 113a, the second electrode partition 113b, and the third electrode partition 113c respectively correspond to the driver's area, the co-driver's area, and the rear seat area of the interior space of the passenger car. However, the embodiments of the present invention are not limited thereto. In actual applications, the corresponding number of partitions and the partition layout mode can be freely set according to different application scenarios. Moreover, the embodiments of the present invention do not particularly limit the number and position of the binding parts, and the manner of binding to the corresponding electrode partitions, as long as partition dimming can be achieved.

[0139] In some alternative embodiments, the binding part provided for the first electrode 113 of multiple sub-functional layers is the first electrode binding part; the binding part provided for the second electrode 114 of multiple sub-functional layers is the second electrode binding part. And, the second electrode binding part is disposed opposite to the first electrode binding part. For example, taking Figure 15 the binding part 21 shown as the first binding part as an example, Figure 18 the second electrode binding part 22 provided for the second electrode 114 shown is located at a position opposite to Figure 15 the binding part 21 shown; taking Figure 16 the binding part 21 shown as the first binding part as an example, Figure 19 the second electrode binding part 22 provided for the second electrode 114 shown is located at a position opposite to Figure 16at a position opposite to the binding part 21 shown; Figure 17 Taking the two binding parts 21' and 21" shown as an example, both of which are the first binding parts, Figure 20 the two second electrode binding parts 22 provided for the second electrode 114 shown are respectively located at positions opposite to Figure 17 the two binding parts 21' and 21" shown.

[0140] On this basis, as Figure 21 shown, the flexible circuit board has a contact part 31 provided between the first electrode binding part (such as Figure 15 the binding part 21 shown) and the second electrode binding part 22. As shown in FIGS. (1) and (2) of Figure 22 , the contact part 31 includes a first contact surface 311 and a second contact surface 312 that face away from each other. The first contact surface 311 faces the first electrode binding part (such as Figure 15 the binding part 21 shown), and the second contact surface 312 faces the second electrode binding part 22. At least one first binding terminal 313 for making electrical contact with the first electrode binding part (such as Figure 15 the binding part 21 shown) is provided on the first contact surface 311. The first electrodes 113 of at least one sub-functional layer are respectively electrically connected to the flexible circuit board through at least one first binding terminal 313; at least one second binding terminal 314 for making electrical contact with the second electrode binding part 22 is provided on the second contact surface 312. The second electrodes 114 of at least one sub-functional layer are respectively electrically connected to the flexible circuit board through at least one second binding terminal 314. Optionally, a conductive colloid, such as ACF glue, can be coated on the surfaces of the first electrode binding part (such as Figure 15 the binding part 21 shown) and the second electrode binding part 22 for making electrical contact with the contact part 31. Then, the first contact surface 311 and the second contact surface 312 of the contact part 31 are respectively pressed and attached to the surfaces of the first electrode binding part (such as Figure 15 the binding part 21 shown) and the second electrode binding part 22 for making electrical contact with the contact part 31. Optionally, as Figure 21 shown, a protective colloid 32 is provided at the sealing part between the above-mentioned contact part 31 and the first electrode binding part (such as Figure 15 the binding part 21 shown) and the second electrode binding part 22 for sealing the sealing part. The protective colloid 32 adopts, for example, UV protective glue.

[0141] Taking the case where there are three sub-functional layers, and the first electrodes of the three sub-functional layers are the above-mentioned first electrode partitions 113a, second electrode partitions 113b, and third electrode partitions 113c respectively, and the second electrodes 114 of the three sub-functional layers form a whole planar electrode layer as an example, the first electrode binding part (such as Figure 15The shown binding part 21) includes three sub-binding parts 21a spaced from each other, a first electrode partition 113a and a second electrode partition 113b, and an extension part 113c1 is respectively connected to the three sub-binding parts 21a; as Figure 18 shown, the second electrode binding part 22 is connected to the entire planar electrode layer (i.e., the second electrode 114). For the contact part 31 of the flexible circuit board, as Figure 22 shown, its first contact surface 311 faces the first electrode binding part (such as Figure 15 the shown binding part 21), and the second contact surface 312 faces the second electrode binding part 22. Three first binding terminals 313 respectively in electrical contact with the three sub-binding parts 21a are arranged on the first contact surface 311, and the above-mentioned first electrode partition 113a, second electrode partition 113b and third electrode partition 113c are respectively electrically conducted with the flexible circuit board through the three first binding terminals 313; a second binding terminal 314 in electrical contact with the second electrode binding part 22 is arranged on the second contact surface 312, and the entire planar electrode is electrically conducted with the flexible circuit board through the second binding terminal 314. Optionally, both the first binding terminal 313 and the second binding terminal 314 are made of copper foil. It is easy to understand that for the three first binding terminals 313, the width of the middle first binding terminal 313 should be less than the spacing between the two etching lines on the first electrode binding part (such as Figure 15 the shown binding part 21), that is, as Figure 15 shown, this spacing is the length of the middle sub-binding part 21a to ensure that the middle first binding terminal 313 does not contact the sub-binding parts 21a on both sides.

[0142] The dimming structure provided by the embodiments of the present invention uses a whole-layer planar substrate as a common substrate for multiple sub-functional layers, enabling the dimming functional layer composed of multiple sub-functional layers to be an integrated structure, that is, the sub-functional layers are not independent of each other. Compared with the splicing structure of four mutually independent sub-functional layers in the prior art, when manufacturing a dimming module, the dimming functional layer only needs to be fixed on the protective layer through a whole-layer planar adhesive layer. For the case of two dimming functional layers, only the two dimming functional layers need to be stacked and fixed together through a whole-layer planar adhesive layer, without the need to splice multiple sub-functional layers again. Therefore, there is no situation where the orientation directions of the four sub-functional layers are confused after being stacked, ensuring that the orientation directions of different partitions are consistent, so that there are no transmittance and chromaticity differences when observed from any perspective, and thus the dimming uniformity can be improved. At the same time, since there is no need to splice multiple sub-functional layers again, the splicing quantity of the sub-functional layers can be reduced, thereby reducing the manufacturing cost and improving the production efficiency. On the basis of achieving the above technical effects, in order to achieve zoned dimming, one of the first electrodes of multiple sub-functional layers and the second electrodes of multiple sub-functional layers are arranged at intervals, and the other is arranged at intervals or forms a whole-layer planar electrode, so as to be able to separately apply different voltages to the electrodes in different partitions to achieve zoned dimming.

[0143] As another technical solution, the embodiments of the present invention further provide a dimming module, including the above dimming structure provided by the embodiments of the present invention. The dimming module further includes a first protective layer and a second protective layer (such as Figure 6 the protective layer 14 shown in ) arranged opposite to each other. The first protective layer and the second protective layer are both, for example, tempered glass. The above dimming structure is arranged between the first protective layer and the second protective layer.

[0144] In some optional embodiments, the dimming structure is fixed to the first protective layer and the second protective layer respectively through two first adhesive layers (such as Figure 6 the first adhesive layer 15 shown in ). Such a dimming module can be applied to transportation fields such as passenger cars, rail transit vehicles, airplanes, and ships. In other optional embodiments, the dimming structure is fixed to the first protective layer through a first adhesive layer, and the dimming structure is arranged at an interval from the second protective layer, that is, there is a hollow space between the dimming structure and the second protective layer. Such a dimming module can be applied to building fields such as daylighting roofs and curtain walls. The above first adhesive layer (such as Figure 6 the first adhesive layer 15 shown in ) adopts a whole-layer planar adhesive layer. Optionally, between two dimming functional layers (1a1, 1a2) is fixed through a second adhesive layer (such as Figure 6 the second adhesive layer 16 shown in ); the second adhesive layer 16 all adopts a whole-layer planar adhesive layer.

[0145] When manufacturing the dimming module, the dimming functional layer only needs to be fixed on the protective layer 14 through the first transparent adhesive layer 15. And for the case of two dimming functional layers (1a1, 1a2), only the two dimming functional layers (1a1, 1a2) need to be stacked and fixed together through the second transparent adhesive layer 16, without the need to splice multiple sub-functional layers of the same dimming functional layer. Thus, there is no situation in the prior art where the orientation directions of four sub-functional layers are confused after being stacked, ensuring that the orientation directions of different partitions are consistent, so that there are no transmittance and chromaticity differences when observed from any perspective, and thus the dimming uniformity can be improved. At the same time, since there is no need to splice multiple sub-functional layers anymore, the splicing quantity of the sub-functional layers can also be reduced, thereby reducing the manufacturing cost and improving the production efficiency.

[0146] In some alternative embodiments, to meet different application scenarios, there are multiple dimming structures which are spliced with each other. Specifically, two dimming structures (1a, 1b) as shown in Figure 5 can be adopted. Since the two dimming structures have been described in detail above, they will not be elaborated here. Of course, the embodiments of the present invention are not limited thereto. In practical applications, according to different application scenarios, the quantity, outer peripheral contour shape and splicing method of the dimming structures can be freely set. Or, there can also be one dimming structure.

[0147] In some alternative embodiments, in order to achieve zonal dimming, the first electrodes of multiple sub-functional layers are arranged at intervals, and the second electrodes of multiple sub-functional layers are arranged at intervals; in this case, the dimming module further includes multiple first flexible circuit boards respectively bound to the first electrodes of multiple sub-functional layers, and multiple second flexible circuit boards respectively bound to the second electrodes of multiple sub-functional layers; or, the first electrodes of multiple sub-functional layers are arranged at intervals, and the second electrodes of multiple sub-functional layers form a whole planar electrode; in this case, the dimming module further includes multiple first flexible circuit boards respectively bound to the first electrodes of multiple sub-functional layers, and a second flexible circuit board bound to the planar electrode. Both of the above two cases can achieve independent control of the sub-functional layers corresponding to different partitions. The binding method of the first flexible circuit board to the first electrode and the binding method of the second flexible circuit board to the second electrode can be implemented by the aforementioned binding part and contact part methods. Since they have been described in detail above, they will not be repeated here.

[0148] In some alternative embodiments, for the case where there is one dimming functional layer, such as Figure 23As shown, the dimming module further includes a first protective layer 14a and a second protective layer 14b which are oppositely arranged. Both of them are, for example, tempered glass. The dimming structure is arranged between the first protective layer 14a and the second protective layer 14b, and is fixed to the first protective layer 14a and the second protective layer 14b respectively through two first transparent adhesive layers (15a, 15b); the dimming module further includes a sealant 17 which is arranged between the first protective layer 14a and the second protective layer 14b and surrounds the dimming structure 1. A buffer tape 18 is arranged around between the sealant 17 and the two first transparent adhesive layers (15a, 15b). The buffer tape 18 is, for example, a VHB tape. Optionally, the thickness of the above-mentioned sealant 17 satisfies the following relational expression:

[0149] T3 = T2 + 2×T1

[0150] Wherein, T3 is the thickness of the sealant 17; T2 is the thickness of the dimming structure 1; T1 is the thickness of the buffer tape 18, and the thickness of the buffer tape 18 is equal to the thickness of the first transparent adhesive layer.

[0151] In a specific embodiment, the thickness of the dimming structure 1 is greater than or equal to 0.1 mm and less than or equal to 0.4 mm; the thickness of the buffer tape is 0.4 mm, or 0.5 mm, or 0.6 mm, or 0.8 mm, or 1.1 mm. The transmittance range of the dimming module satisfying this size range is 2% - 20%.

[0152] In some alternative embodiments, in order to integrate a display function in the dimming module, for example, when applied to the skylight glass of a passenger car, the entertainment function of the skylight can be enriched, such as Figure 24 As shown, the dimming module further includes a transparent display panel 4, which is, for example, an OLED display panel. The transparent display panel 4 is arranged between the dimming structure 1 and one of the first transparent adhesive layers 15a, and is located in a partition where one of the sub-functional layers of the dimming functional layer of the dimming structure 1 is located. The first transparent adhesive layer 15a is set to eliminate the step difference between the transparent display panel and the dimming structure 1; the transparent display panel 4 is fixed to the dimming structure 1 through a second transparent adhesive layer 5. By arranging the transparent display panel 4 in a partition where one of the sub-functional layers of the dimming functional layer of the dimming structure 1 is located, a local display function can be realized. For example, the transparent display panel 4 can be arranged in the partition corresponding to the rear seat of the skylight glass of a passenger car. The above-mentioned first transparent adhesive layer and the second transparent adhesive layer 5 are, for example, liquid optical adhesives (OCR)

[0153] In some alternative embodiments, the sealing frame adhesive of the transparent display panel 4 uses a transparent colloid. This can avoid obvious color difference stripes on the entire transmittance adjustment area of the dimming module.

[0154] In some alternative embodiments, the transparent display panel 4 is a flexible transparent display panel.

[0155] As another technical solution, an embodiment of the present invention further provides a dimming device, which is any one of a daylighting roof, a curtain wall, a passenger vehicle, a rail transit vehicle, an aircraft, and a ship; the adjustment device includes the above-mentioned dimming module provided by the embodiment of the present invention.

[0156] Optionally, the dimming structure provided by the embodiment of the present invention can be applied to the skylight glass of a passenger vehicle; the first electrode partition 113a, the second electrode partition 113b, and the third electrode partition 113c respectively correspond to the driver's area, the co-driver's area, and the rear seat area in the interior space of the passenger vehicle. However, the embodiment of the present invention is not limited thereto. In actual applications, the corresponding number of partitions and the partition layout method can be freely set according to different application scenarios. Moreover, the embodiment of the present invention has no special restrictions on the number and position of the binding parts and the binding method with the corresponding electrode partitions, as long as the partition dimming can be achieved.

[0157] Optionally, the above-mentioned dimming module further includes the above-mentioned transparent display panel 4, and the passenger vehicle glass is skylight glass; the transparent display panel 4 is located in the partition where the sub-function layer corresponding to the rear seat area is located.

[0158] As another technical solution, an embodiment of the present invention further provides a manufacturing method of a dimming structure, taking Figures 5 to 9 the dimming structure shown as an example, the manufacturing method includes:

[0159] Providing a whole-layer structure of one or two dimming functional layers;

[0160] As Figure 9 shown, the whole-layer structures (FI, F2) of the two dimming functional layers (1a1, 1a2) can be called a dye liquid crystal master plate.

[0161] Cutting the whole-layer structure so that the whole-layer structure has a contour with a predetermined shape;

[0162] For example, the above-mentioned predetermined shape is an isosceles trapezoid. When cutting, the above-mentioned whole-layer structure can be cut along the contour of the predetermined shape, for example, mechanical cutting can be used. After cutting, the Figure 7 shown dimming functional layer can be obtained, and a sealing glue 12 is provided around the outer contour of the dimming functional layer.

[0163] Performing local cutting on the cut whole-layer structure to obtain a plurality of sub-function layers distributed in different partitions, where

[0164] Please refer to Figure 8, taking the example that the dimming functional layer includes two sub-functional layers (11a, 11b), each sub-functional layer includes: a first substrate 111 and a second substrate 112 which are oppositely arranged, a first electrode 113 and a second electrode 114 respectively arranged on the sides of the first substrate 111 and the second substrate 112 facing each other; a first alignment layer 115 and a second alignment layer 116 respectively arranged on the sides of the first electrode 113 and the second electrode 114 facing each other; and a dye liquid crystal layer 117 located between the first alignment layer 115 and the second alignment layer 116; at least one of the first substrates 111 of the two sub-functional layers (11a, 11b) and the second substrates 112 of the two sub-functional layers (11a, 11b) constitutes an integral planar substrate. For example, Figure 8 the second substrate 112 in Figure 8 is the integral planar substrate; one of the first electrodes 113 of the two sub-functional layers (11a, 11b) and the second electrodes 114 of the two sub-functional layers (11a, 11b) are arranged at intervals, and the other is arranged at intervals or constitutes an integral planar electrode. For example,

[0165] By using the integral planar substrate as the common substrate of multiple sub-functional layers, the dimming functional layer composed of multiple sub-functional layers can be an integrated structure, that is, the sub-functional layers are not independent of each other. Compared with the splicing structure of four mutually independent sub-functional layers in the prior art, when manufacturing the dimming module, such as Figure 6As shown, it is only necessary to fix the dimming function layer to the protective layer 14 through a whole-layer planar transparent adhesive layer 15. For the case of two dimming function layers, it is only necessary to stack and fix the two dimming function layers (1a1, 1a2) together through a whole-layer planar transparent adhesive layer 16, without the need to splice multiple sub-function layers in the same dimming function layer. Then, it is only necessary to fix the two dimming function layers (1a1, 1a2) to the protective layer 14 through a whole-layer planar transparent adhesive layer 15 and stack and fix the two dimming function layers (1a1, 1a2) together through a whole-layer planar transparent adhesive layer 16, without the need to splice the two sub-function layers (11a, 11b) in the same dimming function layer. Thus, there is no situation where the orientation directions of the four sub-function layers are confused after stacking in the prior art, ensuring that the orientation directions of different partitions are consistent, so that there are no differences in transmittance and chromaticity when observed from any perspective, and thus the dimming uniformity can be improved. At the same time, since there is no need to splice multiple sub-function layers anymore, the splicing quantity of the sub-function layers can be reduced, thereby reducing the manufacturing cost and improving the production efficiency. On the basis of achieving the above technical effects, in order to achieve zoned dimming, one of the first electrodes of multiple sub-function layers and the second electrodes of multiple sub-function layers are arranged at intervals, and the other is arranged at intervals or forms a whole-layer planar electrode, so as to be able to separately apply different voltages to the electrodes in different partitions to achieve zoned dimming.

[0166] In some alternative embodiments, local cutting of the cut whole-layer structure includes:

[0167] Adopting a single mechanical cutting process for the cut whole-layer structure to cut the whole layer of the first substrate of multiple sub-function layers, the whole layer of the first electrodes of multiple sub-function layers, the whole layer of the first alignment layers of multiple sub-function layers, and the sealant in the dye liquid crystal layers of adjacent sub-function layers, so that the first substrates of the formed sub-function layers are arranged at intervals, the first electrodes of multiple sub-function layers are arranged at intervals, the first alignment layers of multiple sub-function layers are arranged at intervals, and the sealants of multiple sub-function layers are arranged at intervals;

[0168] The second substrates of multiple sub-function layers form a whole-layer planar substrate; the second electrodes of multiple sub-function layers form a whole-layer planar electrode; the second alignment layers of multiple sub-function layers form a whole-layer planar alignment layer.

[0169] By adopting a single mechanical cutting process, the cutting of multiple film layers can be completed simultaneously. This cutting method is relatively simple and has a low processing cost.

[0170] In some alternative embodiments, local cutting of the cut whole-layer structure includes:

[0171] Adopt a single mechanical cutting process for the cut whole-layer structure, and cut the whole layer of the first substrate of multiple sub-functional layers, the whole layer of the first electrode of multiple sub-functional layers, the whole layer of the first alignment layer of multiple sub-functional layers, and the whole layer of the dye liquid crystal layer of multiple sub-functional layers, so that the first substrates of the formed sub-functional layers are arranged at intervals, the first electrodes of multiple sub-functional layers are arranged at intervals, the first alignment layers of multiple sub-functional layers are arranged at intervals, and the dye liquid crystal layers of multiple sub-functional layers are arranged at intervals;

[0172] The second alignment layers of multiple sub-functional layers form a whole-layer planar alignment layer; the second electrodes of multiple sub-functional layers form a whole-layer planar electrode; the second substrates of multiple sub-functional layers form a whole-layer planar substrate.

[0173] The first substrates, first electrodes, first alignment layers, and dye liquid crystal layers of the above-mentioned multiple sub-functional layers can all complete the cutting of multiple film layers simultaneously by adopting a single mechanical cutting process. In addition, for the whole-layer film layers, the whole layer is retained without cutting. Thus, local cutting is achieved.

[0174] In some other alternative embodiments, taking Figure 10 the shown dimming structure as an example, perform local cutting on the cut whole-layer structure, including:

[0175] Adopt a laser cutting process for the cut whole-layer structure, and cut the whole layer of one of the first electrodes of multiple sub-functional layers and the second electrodes of multiple sub-functional layers, so that one of the formed first electrodes of multiple sub-functional layers and the second electrodes of multiple sub-functional layers are arranged at intervals;

[0176] The first substrates of multiple sub-functional layers form a whole-layer planar substrate, and the second substrates of multiple sub-functional layers form a whole-layer planar substrate.

[0177] The laser cutting process can make the first substrates and the second substrates of multiple sub-functional layers both be whole-layer planar substrates, and can selectively cut the corresponding film layers between the two whole-layer planar substrates.

[0178] As another technical solution, the embodiment of the present invention also provides a manufacturing method of a dimming structure, taking Figure 11 and Figure 12 the shown dimming structure as an example, the manufacturing method includes:

[0179] Fabricate one or two overlapping dimming functional layers, where the dimming functional layer includes multiple sub-functional layers distributed in different partitions, and each sub-functional layer includes: a first substrate and a second substrate arranged oppositely, a first electrode and a second electrode respectively disposed on one side of the first substrate and the second substrate facing each other; a first alignment layer and a second alignment layer respectively disposed on one side of the first electrode and the second electrode facing each other; and a dye liquid crystal layer located between the first alignment layer and the second alignment layer; wherein,

[0180] The first substrates of the multiple sub-functional layers form an integral planar substrate, and the second substrates of the multiple sub-functional layers form an integral planar substrate;

[0181] Adopt a sputtering deposition process or a laser etching process to fabricate the patterns of the first electrodes of the multiple sub-functional layers and the patterns of the second electrodes of the multiple sub-functional layers, so that one of the first electrodes and the second electrodes of the multiple sub-functional layers is arranged at intervals, and the other is arranged at intervals or forms an integral planar electrode.

[0182] Optionally, the interval between two partition electrodes is greater than or equal to 2 mm and less than or equal to 4 mm, preferably greater than or equal to 1 mm and less than or equal to 2 mm, so as to achieve mutual isolation between different partition electrodes.

[0183] Specifically, the first substrates of the multiple sub-functional layers can form an integral planar substrate, and the second substrates of the multiple sub-functional layers can form an integral planar substrate, that is, the multiple sub-functional layers share an integral planar substrate as the first substrate and share another integral planar substrate as the second substrate. On this basis, the patterns of the first electrodes of the multiple sub-functional layers and the patterns of the second electrodes of the multiple sub-functional layers are both fabricated by a sputtering deposition process or a laser etching process. For example, when fabricating the entire layer structure of the dimming functional layer (which can be called a dye liquid crystal master plate), a partition sputtering deposition process can be carried out on the entire layer of the substrate to directly deposit and form patterned electrodes (the first electrode and / or the second electrode) on the entire layer of the substrate (the first substrate and / or the second substrate), so that there is no need to cut the entire layer of the electrode subsequently. Or, an entire layer of the electrode can also be deposited on the entire layer of the substrate, and then a laser etching process is carried out on the entire layer of the electrode, which can also form patterned electrodes. In the case of adopting this manufacturing method, it can be realized that the first substrates and the second substrates of the multiple sub-functional layers are both integral planar substrates without the need for cutting.

[0184] In summary, the technical solution of the embodiment of the present invention uses a whole-layer planar substrate as a common substrate for multiple sub-functional layers, so that the dimming functional layer composed of multiple sub-functional layers is an integral structure. Compared with the splicing structure of four mutually independent sub-functional layers in the prior art, when manufacturing a dimming module, only the dimming functional layer needs to be fixed on the protective layer through a whole-layer planar adhesive layer. For the case of two dimming functional layers, only the two dimming functional layers need to be stacked and fixed together through a whole-layer planar adhesive layer, without splicing multiple sub-functional layers again. Therefore, there is no situation where the orientation directions of the four sub-functional layers are confused after stacking, ensuring that the orientation directions of different partitions are consistent, so that there are no transmittance and chromaticity differences when observed from any perspective, and thus the dimming uniformity can be improved. At the same time, since there is no need to splice multiple sub-functional layers again, the number of splices of the sub-functional layers can be reduced, thereby reducing the manufacturing cost and improving the production efficiency. On the basis of achieving the above technical effects, in order to achieve zoned dimming, one of the first electrodes of the multiple sub-functional layers and the second electrodes of the multiple sub-functional layers are arranged at intervals, and the other is arranged at intervals or forms a whole-layer planar electrode, so as to be able to separately apply different voltages to the electrodes in different partitions to achieve zoned dimming.

[0185] It can be understood that the above embodiments are only exemplary embodiments adopted to illustrate the principle of the present invention, but the present invention is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also regarded as the protection scope of the present invention.

Claims

1. A dimming structure includes one or two mutually stacked dimming functional layers, characterized in that, The dimming functional layer includes a plurality of sub-functional layers distributed in different partitions. Each of the sub-functional layers includes: a first substrate and a second substrate disposed opposite to each other, a first electrode and a second electrode respectively disposed on one side of the first substrate and the second substrate facing each other; a first alignment layer and a second alignment layer respectively disposed on one side of the first electrode and the second electrode facing each other; and a dye liquid crystal layer located between the first alignment layer and the second alignment layer. At least one of the first substrates of the plurality of sub-functional layers and the second substrates of the plurality of sub-functional layers forms an integral planar substrate; one of the first electrodes of the plurality of sub-functional layers and the second electrodes of the plurality of sub-functional layers is disposed at intervals, and the other is disposed at intervals or forms an integral planar electrode; the dye liquid crystal layers of the plurality of sub-functional layers each include a sealant disposed around between the first alignment layer and the second alignment layer, and dye molecules and liquid crystal molecules disposed in the space surrounded by the sealant; the sealants of the plurality of sub-functional layers are disposed at intervals, and the spaces surrounded by the sealants of the plurality of sub-functional layers are isolated from each other.

2. The dimming structure according to claim 1, characterized in that For two mutually stacked dimming functional layers, the alignment directions of the first alignment layer and the second alignment layer of each sub-functional layer in one dimming functional layer are respectively a first direction and a second direction that are parallel to each other; the alignment directions of the first alignment layer and the second alignment layer of the sub-functional layer in the other dimming functional layer stacked therewith are respectively a third direction and a fourth direction that are parallel to each other.

3. The dimming structure according to claim 2, wherein The first direction and the second direction are perpendicular to the third direction and the fourth direction.

4. The dimming structure according to claim 1, wherein, The first alignment layers of the plurality of sub-functional layers are disposed at intervals, and the second alignment layers of the plurality of sub-functional layers are disposed at intervals.

5. The dimming structure according to claim 4, characterized in that The interval between one of the first electrodes of the plurality of sub-functional layers and the second electrodes of the plurality of sub-functional layers is greater than or equal to 2 mm and less than or equal to 4 mm. The interval between the sealants of the plurality of sub-functional layers is greater than or equal to 2 mm and less than or equal to 4 mm. The interval between the first alignment layers of the plurality of sub-functional layers is greater than or equal to 2 mm and less than or equal to 4 mm; the interval between the second alignment layers of the plurality of sub-functional layers is greater than or equal to 2 mm and less than or equal to 4 mm.

6. The dimming structure according to claim 1, wherein A transparent insulating colloid is disposed in the interval between one of the first electrodes of the plurality of sub-functional layers and the second electrodes of the plurality of sub-functional layers and the interval between the sealants of the plurality of sub-functional layers.

7. The dimming structure according to claim 1, wherein Each of the first electrodes of the plurality of sub-functional layers and the second electrodes of the plurality of sub-functional layers is provided with at least one binding portion for binding to a flexible circuit board outside the transmittance adjustment region where it is located.

8. The dimming structure according to claim 7, wherein There are three sub - function layers, and at least one of the first electrodes of the three sub - function layers and the second electrodes of the multiple sub - function layers are spaced apart, and are respectively a first electrode partition, a second electrode partition, and a third electrode partition. The first electrode partition and the second electrode partition are on the same side of the third electrode partition; There is one binding part, and it is located on the side of the first electrode partition and the second electrode partition away from the third electrode partition; The third electrode partition has an extension part, and one end of the extension part passes through the interval between the first electrode partition and the second electrode partition and extends to the side where the binding part is located; The binding part includes three spaced - apart sub - binding parts, and the first electrode partition, the second electrode partition, and the extension part are respectively bound to the flexible circuit board through the three sub - binding parts.

9. The dimming structure according to claim 7, wherein, There are three sub - function layers, and at least one of the first electrodes of the three sub - function layers and the second electrodes of the multiple sub - function layers are spaced apart, and are respectively a first electrode partition, a second electrode partition, and a third electrode partition. The first electrode partition and the second electrode partition are on the same side of the third electrode partition; There is one binding part, and it is located on the side of the first electrode partition and the third electrode partition away from the first electrode partition or the second electrode partition; The first electrode partition or the second electrode partition has an extension part, and one end of the extension part passes through the interval between the second electrode partition and the third electrode partition or the interval between the first electrode partition and the third electrode partition and extends to the side where the binding part is located; The binding part includes three spaced - apart sub - binding parts, and the second electrode partition and the third electrode partition and the extension part, or the first electrode partition and the third electrode partition and the extension part, are respectively bound to the flexible circuit board through the three sub - binding parts.

10. The dimming structure according to claim 7, characterized in that There are three sub - function layers, at least one of the first electrodes of the three sub - function layers and the second electrodes of the multiple sub - function layers are spaced apart, and are respectively a first electrode partition, a second electrode partition, and a third electrode partition. The first electrode partition and the second electrode partition are on the same side of the third electrode partition; There are two binding parts. One binding part is the first binding part, which is located on the side of the first electrode partition and the second electrode partition away from the third electrode partition, and the other binding part is the second binding part, which is located on the side of the third electrode partition away from the first electrode partition or the second electrode partition; The first binding part includes two spaced - apart sub - binding parts, and the first electrode partition and the second electrode partition are respectively bound to one flexible circuit board through the two sub - binding parts; the third electrode partition is bound to another flexible circuit board through the second binding part.

11. The dimming structure according to any one of claims 7-10, characterized in that, The bonding part provided on the first electrode of the plurality of sub-functional layers is a first electrode bonding part; the bonding part provided on the second electrode of the plurality of sub-functional layers is a second electrode bonding part; The second electrode bonding part is disposed opposite to the first electrode bonding part. The flexible circuit board has a contact part disposed between the first electrode bonding part and the second electrode bonding part. The contact part includes a first contact surface and a second contact surface facing away from each other. The first contact surface faces the first electrode bonding part, and the second contact surface faces the second electrode bonding part; At least one first bonding terminal in electrical contact with the first electrode bonding part is provided on the first contact surface. The first electrodes of at least one of the sub-functional layers are respectively electrically connected to the flexible circuit board through at least one of the first bonding terminals; at least one second bonding terminal in electrical contact with the second electrode bonding part is provided on the second contact surface. The second electrodes of at least one of the sub-functional layers are respectively electrically connected to the flexible circuit board through at least one of the second bonding terminals.

12. The dimming structure according to claim 11, wherein, A protective colloid is provided at the sealing position between the contact part and the first electrode bonding part and the second electrode bonding part.

13. The dimming structure according to claim 7, wherein, The outer peripheral contour shape of the bonding part is a rectangle, the length of the rectangle is greater than or equal to 30 mm and less than or equal to 60 mm; the width of the rectangle is greater than or equal to 6 mm and less than or equal to 15 mm.

14. The dimming structure according to claim 8 or 9, characterized in that, The distance between the extension part and the electrode partition it passes through is greater than or equal to 40 μm and less than or equal to 80 μm.

15. The dimming structure according to any one of claims 8-10, characterized in that, The distance between each adjacent two of the sub-bonding parts is greater than or equal to 0.1 mm and less than or equal to 1 mm.

16. A dimming structure includes one or two mutually stacked dimming functional layers, characterized in that, The dimming function layer includes a plurality of sub-functional layers distributed in different partitions. Each sub-functional layer includes: a first substrate and a second substrate disposed opposite to each other, a first electrode and a second electrode respectively disposed on one side of the first substrate and the second substrate facing each other; a first alignment layer and a second alignment layer respectively disposed on one side of the first electrode and the second electrode facing each other; and a dye liquid crystal layer located between the first alignment layer and the second alignment layer; The first substrates of the plurality of sub-functional layers constitute a whole planar substrate, and the second substrates of the plurality of sub-functional layers constitute a whole planar substrate; one of the first electrodes and the second electrodes of the plurality of sub-functional layers is arranged at intervals, and the other is arranged at intervals or constitutes a whole planar electrode; The distance between one of the first electrodes and the second electrodes of the plurality of sub-functional layers is greater than or equal to 2 mm and less than or equal to 4 mm.

17. A dimming module, characterized in that, Including the dimming structure according to any one of claims 1-15; or, the dimming structure according to claim 16; It further includes a first protective layer and a second protective layer disposed opposite to each other, and the dimming structure is disposed between the first protective layer and the second protective layer.

18. The dimming module according to claim 17, wherein The dimming structure is fixed to the first protective layer and the second protective layer respectively through two first transparent adhesive layers; or, the dimming structure is fixed to the first protective layer through a first transparent adhesive layer, and the dimming structure is arranged at an interval from the second protective layer; The first transparent adhesive layer adopts an integral planar adhesive layer.

19. The dimming module according to claim 17, wherein, The two dimming functional layers are fixed through a second transparent adhesive layer; All the second transparent adhesive layers adopt integral planar adhesive layers.

20. The dimming module according to claim 17, wherein There are multiple dimming structures, which are spliced with each other.

21. The dimming module according to claim 17, wherein The first electrodes of the multiple sub-functional layers are arranged at intervals, and the second electrodes of the multiple sub-functional layers are arranged at intervals; the dimming module further includes a plurality of first flexible circuit boards correspondingly bound to the first electrodes of the multiple sub-functional layers, and a plurality of second flexible circuit boards correspondingly bound to the second electrodes of the multiple sub-functional layers; or, The first electrodes of the multiple sub-functional layers are arranged at intervals, and the second electrodes of the multiple sub-functional layers form an integral planar electrode; the dimming module further includes a plurality of first flexible circuit boards correspondingly bound to the first electrodes of the multiple sub-functional layers, and a second flexible circuit board bound to the integral planar electrode.

22. The dimming module according to claim 18, wherein The dimming structure is fixed to the first protective layer and the second protective layer respectively through two first transparent adhesive layers; There is one dimming functional layer; The dimming module further includes a sealant arranged between the first protective layer and the second protective layer and surrounding the dimming structure, and a buffer tape is arranged around between the sealant and the two first transparent adhesive layers.

23. The dimming module according to claim 22, wherein The thickness of the sealant satisfies the following relational expression: T3 = T2 + 2×T1 Wherein, T3 is the thickness of the sealant; T2 is the thickness of the dimming structure; T1 is the thickness of the buffer tape, and the thickness of the buffer tape is equal to the thickness of the first transparent adhesive layer.

24. The dimming module according to claim 23, wherein The thickness of the dimming structure is greater than or equal to 0.1 mm and less than or equal to 0.4 mm; the thickness of the buffer tape is 0.4 mm, or 0.5 mm, or 0.6 mm, or 0.8 mm, or 1.1 mm.

25. The dimming module according to any one of claims 18, 22-24, characterized in that, The dimming module further includes a transparent display panel, the transparent display panel is arranged between the dimming structure and one of the first transparent adhesive layers, and is located in one of the sub-functional layer partitions of the dimming functional layer, and this first transparent adhesive layer is set to eliminate the step difference between the transparent display panel and the dimming structure; the transparent display panel is fixed to the dimming structure through a second transparent adhesive layer.

26. The dimming module according to claim 25, wherein The sealing glue of the transparent display panel adopts a transparent colloid.

27. A dimming device, characterized in that, The dimming device is any one of a daylighting roof, a curtain wall, a passenger car, a rail transit vehicle, an airplane, and a ship; the adjustment device includes the dimming module according to any one of claims 18-26.

28. The dimming device according to claim 27, wherein The dimming module includes the dimming structure according to any one of claims 9-11; The dimming device is applied to the skylight glass of a passenger car; the first electrode partition, the second electrode partition, and the third electrode partition respectively correspond to the driver's area, the co-driver's area, and the rear seat area of the interior space of the passenger car.

29. The dimming device according to claim 28, characterized in that, The dimming module further includes a transparent display panel, which is disposed between the dimming structure and one of the first transparent adhesive layers, and is located in a partition where one of the sub-functional layers of the dimming functional layer is located. The first transparent adhesive layer is configured to eliminate the step difference between the transparent display panel and the dimming functional layer; the transparent display panel is fixed to the dimming structure through a second transparent adhesive layer; The transparent display panel is located in the partition where the sub-functional layer corresponding to the rear seat area is located.

30. A manufacturing method of a dimming structure, characterized in that, including: Providing a whole-layer structure of one or two dimming functional layers; Cutting the whole-layer structure so that the whole-layer structure has a contour with a predetermined shape; Performing local cutting on the cut whole-layer structure to obtain a plurality of sub-functional layers distributed in different partitions, where Each of the sub-functional layers includes: a first substrate and a second substrate disposed opposite to each other, a first electrode and a second electrode respectively disposed on one side of the first substrate and the second substrate facing each other; a first alignment layer and a second alignment layer respectively disposed on one side of the first electrode and the second electrode facing each other; and a dye liquid crystal layer located between the first alignment layer and the second alignment layer; At least one of the first substrates of the plurality of sub-functional layers and the second substrates of the plurality of sub-functional layers constitutes a whole-layer planar substrate; one of the first electrodes of the plurality of sub-functional layers and the second electrodes of the plurality of sub-functional layers are arranged at intervals, and the other is arranged at intervals or constitutes a whole-layer planar electrode; the dye liquid crystal layers of the plurality of sub-functional layers each include a sealant disposed around between the first alignment layer and the second alignment layer, and dye molecules and liquid crystal molecules disposed in the space surrounded by the sealant; the sealants of the plurality of sub-functional layers are arranged at intervals, and the spaces surrounded by the sealants of the plurality of sub-functional layers are isolated from each other.

31. The manufacturing method of the dimming structure according to claim 30, characterized in that, The performing local cutting on the cut whole-layer structure includes: Adopting a single mechanical cutting process on the cut whole-layer structure to cut the whole layer of the first substrates of the plurality of sub-functional layers, the whole layer of the first electrodes of the plurality of sub-functional layers, the whole layer of the first alignment layers of the plurality of sub-functional layers, and the sealants in the dye liquid crystal layers of adjacent sub-functional layers, so that the first substrates of the formed sub-functional layers are arranged at intervals, the first electrodes of the plurality of sub-functional layers are arranged at intervals, the first alignment layers of the plurality of sub-functional layers are arranged at intervals, and the sealants of the plurality of sub-functional layers are arranged at intervals; The second substrates of the plurality of sub-functional layers constitute a whole-layer planar substrate; the second electrodes of the plurality of sub-functional layers constitute a whole-layer planar electrode; the second alignment layers of the plurality of sub-functional layers constitute a whole-layer alignment layer.

32. The manufacturing method of the dimming structure according to claim 30, characterized in that, The performing local cutting on the cut whole-layer structure includes: The entire cut layer structure is subjected to a laser cutting process to cut the entire layer of either the first electrodes of the multiple sub-functional layers or the second electrodes of the multiple sub-functional layers, so that either the first electrodes of the multiple formed sub-functional layers or the second electrodes of the multiple formed sub-functional layers are arranged at intervals. The first substrates of the multiple sub-functional layers form an entire planar substrate, and the second substrates of the multiple sub-functional layers form an entire planar substrate.

33. A manufacturing method of a dimming structure, characterized in that, It includes: Manufacturing one or two mutually stacked dimming functional layers, where each dimming functional layer includes multiple sub-functional layers distributed in different partitions, and each sub-functional layer includes: a first substrate and a second substrate arranged opposite to each other, a first electrode and a second electrode respectively arranged on the sides of the first substrate and the second substrate facing each other; a first alignment layer and a second alignment layer respectively arranged on the sides of the first electrode and the second electrode facing each other; and a dye liquid crystal layer located between the first alignment layer and the second alignment layer; wherein, The first substrates of the multiple sub-functional layers form an entire planar substrate, and the second substrates of the multiple sub-functional layers form an entire planar substrate; Using a sputtering deposition process or a laser etching process to manufacture the patterns of the first electrodes of the multiple sub-functional layers and the patterns of the second electrodes of the multiple sub-functional layers, so that either the first electrodes of the multiple formed sub-functional layers or the second electrodes of the multiple formed sub-functional layers are arranged at intervals, and the other is arranged at intervals or forms an entire planar electrode.

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